package cn.yomigaeri.common.config;

import cn.yomigaeri.common.json.JacksonObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.DispatcherServlet;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import java.util.List;

/**
 * @ClassName: MvcConfig
 * @Package: cn.yomigaeri.config
 * @Description:
 * @Author 王璇
 * @Create 2025/5/11 21:25
 * @Version 1.0
 */

@Configuration
@ConditionalOnClass(DispatcherServlet.class)
@Slf4j
public class MvcConfig implements WebMvcConfigurer {

    @Override
    public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        log.info("开始进行消息转换器配置...");
        // 创建消息转换器对象
        MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
        // 设置对象转换器，底层使用Jackson将Java对象转为json
        converter.setObjectMapper(new JacksonObjectMapper());
        // 将上面的消息转换器对象追加到mvc框架的转换器集合中
        converters.add(converters.size() - 1, converter);
    }
}
